Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for 67448 — Gypsum, KS

ZIP code 67448 (Gypsum, Saline County) is in USDA zone 6b: the coldest winter night averages −5 to 0 °F. The median last spring frost is April 27 and the first fall frost October 16.

Where ZIP 67448 is

Outlined: the ZIP code area · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone6b−5 to 0 °F
Coldest night−20.6 to −17.8 °C
Last frostApr 27
First frostOct 16
2012 zone6a

Was 6a on the 2012 map — half a zone warmer now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 6b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Gypsum, KS…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Gypsum, KS

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 27median — 50% chance of a later frost
Safe for tender plantsMay 10only 10% chance of frost after
First fall frostOctober 16median — 10% chance by Sep 27
Growing season170 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 18 and returns around October 25.

From the NOAA station Smolan 1ne, KS — 16 miles away, elevation 1,280 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in 67448

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 16 – Mar 30
SpinachSow outdoors · Mar 16 – Apr 6
Broccoli, cabbageStart indoors · Feb 16 – Mar 2
Broccoli, cabbageTransplant · Apr 6 – Apr 20
Onion setsPlant outdoors · Mar 30 – Apr 13
PotatoesPlant outdoors · Apr 6 – Apr 20
LettuceSow outdoors · Mar 30 – Apr 13
Carrots, beetsSow outdoors · Apr 6 – Apr 20
TomatoesStart indoors · Mar 2 – Mar 16
TomatoesTransplant · May 4 – May 18
Peppers, eggplantStart indoors · Feb 16 – Mar 2
Peppers, eggplantTransplant · May 11 – May 25
BeansSow outdoors · May 4 – May 18
Sweet cornSow outdoors · May 4 – May 18
Cucumbers, squashSow outdoors · May 4 – May 18
Fall lettuce, spinachSow outdoors · Aug 21 – Sep 4
GarlicPlant cloves · Oct 2 – Nov 6
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 27) and first fall frost (Oct 16) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 67448 came on Feb 24 — 19 days earlier than the 1991–2020 average (Mar 15).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Soil in Gypsum, KS

The soil mapped at the center of ZIP 67448 is Lancaster — loam, well drained.

TextureLoama good balance for most vegetables
pH6.0slightly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter2%moderate
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Lancaster-Hedville complex, 3 to 20 percent slopes.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 67448; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Gypsum, KS

Summer high94 °Faverage high, July
Winter low18 °Faverage low, January
Hot days70days a year at 90 °F or more
Freezing nights137nights a year at 32 °F or less
Growing degree days4,060base 50 °F — the season’s usable heat
Longest day14 h 52 mindaylight on June 21
Shortest day9 h 27 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation34 inper year, rain and melted snow
Snowfall15 inper year

Average high and low, by month

10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 42 °F, low 18 °F 42°18° JanFebruary: average high 46 °F, low 20 °F 46°20° FebMarch: average high 57 °F, low 30 °F 57°30° MarApril: average high 67 °F, low 40 °F 67°40° AprMay: average high 77 °F, low 50 °F 77°50° MayJune: average high 88 °F, low 62 °F 88°62° JunJuly: average high 94 °F, low 67 °F 94°67° JulAugust: average high 91 °F, low 65 °F 91°65° AugSeptember: average high 83 °F, low 55 °F 83°55° SepOctober: average high 70 °F, low 43 °F 70°43° OctNovember: average high 56 °F, low 30 °F 56°30° NovDecember: average high 44 °F, low 21 °F 44°21° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″January: 0.84 in precipitation, 4.2 in snowfall 0.8❄4 JanFebruary: 1.17 in precipitation, 4.1 in snowfall 1.2❄4 FebMarch: 2.22 in precipitation, 1.5 in snowfall 2.2❄2 MarApril: 3.12 in precipitation, 0.1 in snowfall 3.1 AprMay: 4.89 in precipitation 4.9 MayJune: 4.47 in precipitation 4.5 JunJuly: 4.44 in precipitation 4.4 JulAugust: 4.41 in precipitation 4.4 AugSeptember: 3.37 in precipitation 3.4 SepOctober: 2.30 in precipitation, 0.1 in snowfall 2.3 OctNovember: 1.52 in precipitation, 1.7 in snowfall 1.5❄2 NovDecember: 1.28 in precipitation, 3 in snowfall 1.3❄3 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Smolan 1ne, KS (16 mi away); precipitation: Elmo 1 Sw, KS (9 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 6b.

674766b
Roxbury, KS · 8 mi
674166b
Assaria, KS · 9 mi
674836b
Tampa, KS · 13 mi
674386b
Durham, KS · 13 mi
674516b
Hope, KS · 15 mi
674566b
Lindsborg, KS · 16 mi
674026b
Salina, KS · 17 mi
674016b
Salina, KS · 18 mi

Kansas planting zones →

Questions about 67448

What planting zone is ZIP code 67448?

ZIP code 67448 (Gypsum, KS) is in USDA hardiness zone 6b on the 2023 map: the coldest night of an average winter reaches −5 to 0 °F (−20.6 to −17.8 °C).

When is the last frost in Gypsum, KS?

The median last spring frost (32 °F) near 67448 is April 27; after May 10 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Smolan 1ne station.

When is the first frost in Gypsum, KS?

The median first fall frost near 67448 is October 16, giving a median frost-free growing season of 170 days.

When should I plant tomatoes in 67448?

Start tomato seeds indoors around Mar 2 – Mar 16 and set transplants outside around May 4 – May 18, one to three weeks after the median last frost.

How much rain and snow does 67448 get?

About 34 inches of precipitation a year and 15 inches of snowfall (NOAA 1991–2020 normals, Elmo 1 Sw station).

How hot do summers get in Gypsum, KS?

The average high peaks at 94 °F in July, with about 70 days a year at 90 °F or more.

What kind of soil does 67448 have?

The USDA soil survey maps Lancaster at the center of ZIP 67448: loam, well drained, pH about 6.0 (slightly acidic).

Did spring come early in Gypsum, KS in 2026?

Spring leaf-out near 67448 came on Feb 24 in 2026, 19 days earlier than the 1991–2020 average (Mar 15), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Gypsum, KS?

Intermediate onions: the longest day near 67448 is 14 h 52 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 67448 change?

Yes. The 2012 USDA map put 67448 in zone 6a; the 2023 map puts it in zone 6b. The newer map uses 1991–2020 data and more weather stations.